qq小妹头
可替换成: be able to (do sth. ), be capable of (doing sth.) 如: Most children are able to walk before they are able to talk. = Most children can walk before they can talk. 多数孩子在会说话前就会走路. He is capable of running a mile in four minutes. =He can run a mile in four minutes. 他能用四分钟跑一英里.
一首ciao情歌
can可以替换成be able to (do sth. ),be capable of (doing sth.)。
be able to
能够; (因具有品质或技能)能做到...…的;(因有足够的自由、权力、时间、财力等而)可以...…的
I doubt they'll be able to help but it's worth a try.
我不敢肯定他们能够帮得上忙,但不妨试一试。
be able to的时态
一般现在时:am/is/are able to
一般过去时:was/were able to
一般将来时:will be able to
现在完成时:have/has been able to